<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>post带参</title>
    <script>
        var xhr=new XMLHttpRequest();
        xhr.open('post','http://121.199.0.35:8888/user/login');
        let obj={
            username:'admin1',
            password:123321
        };
        xhr.setRequestHeader('Content-Type','application/json');
        xhr.send(JSON.stringify(obj));
        xhr.onreadystatechange=function(){
            if(xhr.readyState===4&xhr.status===200){
                console.log(xhr.response);
            }
        };
    </script>
</head>
<body>
    
</body>
</html>